Entry-level copper testers are often built around one basic task: checking continuity. CuBLU goes significantly further, combining the everyday simplicity installers expect with diagnostic, identification, measurement and documentation capabilities designed for real field work.
Clearer fault diagnosis

Instead of simply indicating that a cable has failed, CuBLU identifies six named fault types – Open, Short, Miswire, Crossover, Split Pair and Multi-Fault – helping technicians understand what has gone wrong and move more quickly to corrective action
Built for everyday productivity

Support for up to 16 remote IDs helps teams identify and verify multiple cable runs efficiently. The remote number appears directly on the display, reducing unnecessary movement between rooms, racks and patch panels.
Useful diagnostic depth

CuBLU II and CuBLU III add cable length measurement up to 120 metres and DC resistance per pair, providing useful diagnostic information beyond a simple pass/fail result.
Safer field testing

Built-in voltage detection helps technicians identify potentially live cables before testing. CuBLU III further adds PoE detection for work around powered Ethernet connections.
App-connected documentation

With CuBLU II and CuBLU III, UniBLU connectivity enables results to become part of the project record rather than disappearing once the test is completed. Technicians can save, document and export their work directly from the field.
Designed for the field

A compact 197-gram form factor, rechargeable 2600 mAh battery, USB-C charging and up to 96 hours of battery life make CuBLU practical for long workdays and multi-day projects.
